Finding the Fourth Proportional to 22,272, 33,405.72 and 10,577.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,272 : 33,405.72 = 10,577.76 : x
2. Step 2: Convert to fraction form
   22,272/33,405.72 = 10,577.76/x
3. Step 3: Cross multiply
   22,272x = 33,405.72 × 10,577.76
4. Step 4: Simplify right side
   22,272x = 353,357,688.79
5. Step 5: Solve for x
   x = 353,357,688.79/22,272
6. Step 6: Final answer
   x = 15,865.56